Indiana ^-10-R Louis A. Krumholz Completed 1968 



Mussel research study - To inventory the mussel resources, the Wabash and White Rivers have 

 been sampled with crowfoot bar at 50 1-mile stations. Biological and life history infor- 

 mation, such as reproductive success, age, and growth has been obtained for evaluation of 

 management regulations. 



Kentucky A-19-R John C. Williams $18,000 



Mussel fishery investigations - The location md extent of the mussel beds, species composi- 

 tion, population density, harvest, recruitment, aind reproduction of mussels in the Tennessee, 

 Green, and Ohio Rivers in Kentucky are investigated. Present work is on the Ohio River 

 from the point where the River enters the State at river mile 313 to Cairo, 111., river mile 

 981. Murray State University Biological Station at Miirray is doing the work. 



Ohio 4.-28-R Henry Van der Schalie $60,000 



Mussel fisheries investigation - Studies are in progress on the Muskingum River in south- 

 eastern Ohio to determine the distribution of the mussel beds and to obtain biological and 

 life history information for the species present. An estimate also is made of the annual 

 harvest by collectors. Later, work will encompass the lower portion of the Scioto and 

 Little Miami Rivers. Information obtained will provide the basis for a management program 

 for the State's mussel resources. 



Pennsylvania 3-85-R John M. Bates $20,000 



Mussel investigations - The location and extent of the mussel beds, both qualitatively and 

 quantitatively, in the Ohio River drainage within the State are investigated. Samples are 

 being collected to obtain species composition, stage of maturity, and rates of growth. How 

 various harvesting techniques affect the mussel beds will be studied, also. 



Tennessee <i-46-R Paul Yokley, Jr. $21,270 



Freshwater mussel ecology, Kentucky Lake. Tennessee - This study is designed to evaluate the 

 types of habitat of established mussel beds and to determine the density and species compo- 

 Bition at each site. Mussels will be tagged, and the shell erosion, age range, 

 number of species, and their density will be correlated with the water quality and bottom 

 type of the area. 



Oyster : 



Alabama 2-18-R Edwin May Completed 1968 



Oyster raft production - The design of a low-cost raft and cultch material is completed. Also, 

 research on spat growth related to a changing environment has been concluded. 



Alabama 2-30-D George Allen Completed 1967 



Shell planting for oyster cultch - An area in Mobile Bay on Point Clear Reef was selected 

 and planted with about 37,309 barrels of shell. A substantial supply of seed oysters 

 resulted from this planting. 



Delaware 3-8-D Ted Ritchie Completed 1966 



Rehabilitation of the natura] seed oyster beds in Delaware - The planting of 219,184. bushels 

 of shell has been completed to develop and enlarge several small natural seed oyster beds. 

 A successful spatfall was recorded at each area. 



Delaware 3-49-R Don Maurer $29,000 



Pilot studies of the spawning and rearing of MSX resistant oysters - Research is continuing 

 to spawn and rear disease-resistant oysters for large-scale plantings. Five stocks presumed 

 MSX "resistant" and six stocks MSX "susceptible" are used in the laboratory experiments. 

 Further. work is underway to rear newly hatched oysters in the laboratory and in the field. 



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